Where is the upwind leg?

I had taken off from a small airport in southern Arizona, when the tower asked me to extend my upwind leg. “I’ll extend departure leg,” I acknowledged. I just happened to be flying with my CFI, who is also a controller at the same airport. My CFI gave me a quizzical look. I asked, “why do controllers use incorrect terminology to describe the departure leg?”

Baptism by air

I decided to descend to 3000 feet, by cutting power and setting the nose down slightly. Suddenly all hell broke loose, and the airplane felt like it was being pushed by a force from above. My airspeed was approaching 160 kts with power pulled back.